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Dimming expansion wiring

Posted: Mon May 26, 2014 9:48 am
by morn623
I'm switching from a Rapid LED DDC-01 dimmer to the dimming expansion and just wanted to make sure I get my wiring right. On the DDC-01 I have three PWM- outputs (one for each channel) and one PWM+ output (all channels together). In a perfect world I would just transfer the PWM+ to one of the grounds on the dimming expansion and each of the PWM- to a different channel each. Although that doesn't seem to make sense to me as I associate PWM- in my mind with neutral, but then the DDC-01 doesn't seem to make sense the way it's set up. I'm hoping I don't have to rewire all six of my drivers. Any assistance would be greatly appreciated. Thanks!

Re: Dimming expansion wiring

Posted: Mon May 26, 2014 9:52 am
by rimai
There are 2 ways people use to distribute signals.
Either common - or common +.
With RA, we use common - and it seems your dimmer is common -.
Regardless on how they use the common, you still connect them in the same way. - goes to - and + goes to +.
So, the PWM- goes to common - and each PWM+ goes to each channel.

Re: Dimming expansion wiring

Posted: Mon May 26, 2014 5:55 pm
by morn623
So with this ELN-60-48P driver I would connect the DIM+ to the Channel on the Dimming Expansion and the DIM- to the Ground?

Re: Dimming expansion wiring

Posted: Mon May 26, 2014 5:56 pm
by rimai
yes